 | Cameron Mitchell als Massimo Morlacchi |
 | Eva Bartok als Contessa Cristiana Cuomo |
 | Thomas Reiner als Inspector Silvestri |
 | Ariana Gorini als Nicole |
 | Dante DiPaolo als Franco Scalo |
 | Mary Arden als Peggy Peyton |
 | Franco Ressel als Marchese Riccardo Morelli |
 | Claude Dantes als Tao-Li |
 | Luciano Pigozzi als Cesare Lazzarini |
 | Lea Lander als Greta |
 | Massimo Righi als Marco |
| Francesca Ungaro als Isabella |
 | Giuliano Raffaelli als Zanchin |
 | Harriet Medin als Clarissa |
| Mary Carmen als Model |
 | Heidi Stroh als Bleach Blond Model |
 | Enzo Cerusico als Gas Station Attendant |
| Nadia Anty als Model |
 | Calisto Calisti als Butler (uncredited) |
 | Romano Moraschini als Suspect at Police Station (uncredited) |
 | Goffredo Unger als The Masked Killer (uncredited) |
| Mario Bava | Director |
| Tina Grani | Costume Design |
| Ubaldo Terzano | Director of Photography |
| Mario Bava | Writer |
| Carlo Rustichelli | Original Music Composer |
| Giuseppe Barilla | Writer |
| Mario Serandrei | Editor |
| Marcello Fondato | Story |
| Marcello Fondato | Screenplay |
| Emilio Trani | Makeup Artist |
| Marisa Laganga | Hairstylist |
| Mario Mancini | Camera Operator |
| Luciana Loschiavo | Script Supervisor |
| Georges de Beauregard | Co-Producer |
| Armando Govoni | Production Manager |
| Alfredo Mirabile | Producer |
| Lina Caterini | Assistant Editor |
| Benito Caripi | Production Secretary |
| Fabio Ancillai | Sound Mixer |
| Georges C. Stilly | Executive Producer |
| Italo Cameracanna | Foley Artist |
| Antonio Rinaldi | Gaffer |
| Cristina Grieco | Second Assistant Director |
| Arrigo Breschi | Set Dresser |
| Mario Bava | Director of Photography |
| Massimo Patrizi | Producer |
| Piero Speziali | Accountant |
| Eleanora Garnett | Costumer |
| Franco Grifeo | Administration |
| Vittorio Trentino | Sound |
| Priscilla Contardi | First Assistant Director |
| Benito Carifi | Production Secretary |
| Arrigo Breschi | Set Decoration |
